[meteorite-list] To the past or future finders of Sutter's MillMeteorites

From: Richard Montgomery <rickmont_at_meteoritecentral.com>
Date: Mon, 4 Jun 2012 18:06:19 -0700
Message-ID: <AE74BCFCE76A4DC9A97CC11B811588E0_at_bosoheadPC>

Dr. Yin, and List,

As a persistent searcher (back again tomorrow) and as one who has yet to
find my first complete stone, I no longer have any magnets attached to my
sticks. Oddly, I didn't start hunting this class that way either, but they
did allow me some fun anaylyzing terrestrial look-alikes. In an odd way, I
anticipate the inevitable vision in my head, of seeing it first (and doing
my dance) without impacting the critical scientific value.

It rained again today. Minimally. Considering the critical request you've
asked, the rain is a tiny obstacle to my boots and aqueous terrestrial
change vs. magnetism contamination.

Besides, isn't it more fun to see it one the ground rather than at the
bottom of my stick? (I still am in hunt-mode)....it will allow proper time
to breath, photo, coodinate, not-touch, properly gather.

I do have camel bells attached to my sticks, announcing my presence to the
Crotalis residences...and oddly have yet to meet one, while I know they are
here.

Dr. Yin, excellent advice!

Richard Montgomery


----- Original Message -----
From: "Qing-Zhu Yin" <qyin at ucdavis.edu>
To: "Art" <blurtheline at gmail.com>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Monday, June 04, 2012 5:11 PM
Subject: [meteorite-list] To the past or future finders of Sutter's
MillMeteorites


>
> Dear Art,
> I am trying again to post the message. Please let me know if this works.
> Qing-zhu
>
> (Joint message released from Qing-zhu Yin, Pierre Rochette, Ken Verosub)
>
> To the past or future finders of Sutter's Mill stones (and more generally
> to all meteorite hunters): please do not stick magnets on your finds!
>
> This cause irremediable damage to their scientific value (erasing their
> magnetic memory). Moreover it is a useless habit to recognize meteorites.
> A lot of rare types are hardly attracted by magnet (R, some CV, CM, most
> angrite, martian, lunar, HED.). The only interest we see for using a
> magnet
> is when you search a known ordinary chondrite strewn field. or iron
> meteorite. A number of terrestrial rock (including the basalt gravels that
> may look like Sutter's Mill) are well attracted by strong magnet.
>
> Unfortunately we are seeing some pieces have been wiped with a magnet. For
> those of you who can be sure that their SM piece has not been seeing a
> magnet, please consider helping science by a loan of a small fragment. It
> will be non-destructive analyses at UC Davis and it will be quick. It
> takes
> a few minutes to an hour.
>
> We can quickly and easily look at the magnetization of any samples smaller
> than 5-10 cc to determine which ones might not have been remagnetized by
> collectors. Then we can try to do paleointensity studies on those
> (meaning
> how strong the magnetic field was 4.5 billion years ago in the nascent
> solar system). We can also characterize the magnetic properties of any
> sample, including ones that have been remagnetized. Most of these
> measurements can be done quickly and easily without any chemical or
> physical destruction of the material. We could do a quick screening and
> decide which magnetic measurements made sense for each sample. They could
> then decide which ones to leave with us for more analysis and which ones
> they wanted to take back immediately.
>
> In addition, there are a number of non-destructive analyses which could be
> done: including X-ray computed tomography (to see through what is inside
> as
> done for human bodies). We (Denton Ebel and Qing-Zhu Yin) have already
> done
> work on two specimens (SM3 and SM9) and submitted a conference report on
> May 29th. A few more are currently planned. We will need to do more of
> these analyses. CT scan images and movies shall be shared with the owner
> of
> the samples. Those of you who want to see examples of those CT movies,
> could come to my office and labs at UC Davis.
>
> We also urgently need to do more of gamma ray counting of more specimens.
> This will help us to determine the pre-atmospheric entry meteoroid size
> before break up, among other information we could learn. These will
> require
> samples to travel overseas in deep underground facilities (either in North
> Japan or Italian Alps). The equivalent facilities in US was shut down many
> years ago due to funding situation unfortunately. The test time is
> typically 1 month. The specimens will be shipped back and forth with FedEx
> or any other insured carrier.
>
> If people are interested in having these test done (no harm is done to the
> specimens) but help science in big way, please have them contact me. See
> my
> contact information below.
>
> All the information we have so far indicate the organic content of SM
> meteorite is very very low. The implication is that this would require
> LARGE amount of material made available to scientists so that we can
> extract those minute quantities of amino acids and other organics and
> presolar stardust grains for mass spectrometric analyses (these are the
> two
> primary potentials that the SM meteorites could offer. We need public to
> come forward. Your support is deeply appreciated to realize its full
> potential.
>
> Respectively,
>
> Qing-zhu Yin
>
> ________________________________________________
> Qing-Zhu Yin, PhD
> Chancellor's Fellow 2011-2016
> Associate Professor
> Department of Geology
> Earth and Physical Sciences (EPS) Building
> University of California, Davis
> One Shields Avenue
> Davis, CA 95616
>
> Tel: 1-530-752-0934 (Office: EPS 3129)
> 1-530-220-4076 (Cell Phone)
> 1-530-752-0637 (Yin Lab-ICP^2-EPS 3230)
> Fax: 1-530-752-0951 (Department)
> E-mail: qyin at ucdavis.edu
> http://www.geology.ucdavis.edu/faculty/yin.html
> ________________________________________________
> Please check out our new book published by Cambridge University Press on
> April 12th, 2012
> www.cambridge.org/9781107600768 (paperback edition)
> www.cambridge.org/9780521760256 (hardback edition)
>
>
>> Hi Dr. Yin;
>>
>> Posts should appear immediately. Check to make sure that your email
>> client is configured to send email as plain text (as opposed to Rich
>> Text, or HTML) as sometimes this will cause issues with emails being
>> delivered. Also, next time you post please cc: blurtheline at gmail.com
>> and I will see what happens to the post.
>>
>> Best Regards, Art
>>
>> On Sat, Jun 2, 2012 at 9:55 PM, Qingzhu Yin <qyin at ucdavis.edu> wrote:
>> > Dear Metlist manager,
>> > I am writing to find out if the following message I sent to June 1 to
>> > meteorite-list at meteoritecentral.com was posted or not. I have not seen
>> it in
>> > the met list since I sent the email, but sure how long does it take to
>> get
>> > the messages posted.
>> > Your help would be appreciated.
>> > Qingzhu
>> >
>> > On Jun 1, 2012, at 2:09 AM, Qingzhu Yin wrote:
>> >
>> > (Joint message released from Qing-zhu Yin, Pierre Rochette, Ken
>> Verosub)
>> >
>> > To the past or future finders of Sutter's Mill stones (and more
>> generally to
>> > all meteorite hunters): please do not stick magnets on your finds!
>> >
>> > This cause irremediable damage to their scientific value (erasing their
>> > magnetic memory). Moreover it is a useless habit to recognize
>> meteorites. A
>> > lot of rare types are hardly attracted by magnet (R, some CV, CM, most
>> > angrite, martian, lunar, HED.). The only interest we see for using a
>> magnet
>> > is when you search a known ordinary chondrite strewn field. or iron
>> > meteorite. A number of terrestrial rock (including the basalt gravels
>> that
>> > may look like Sutter's Mill) are well attracted by strong magnet.
>> >
>> > Unfortunately we are seeing some pieces have been wiped with a
>> magnet. For
>> > those of you who can be sure that their SM piece has not been seeing a
>> > magnet, please consider helping science by a loan of a small fragment.
>> It
>> > will be non-destructive analyses at UC Davis and it will be quick. It
>> takes
>> > a few minutes to an hour.
>> >
>> > We can quickly and easily look at the magnetization of any samples
>> smaller
>> > than 5-10 cc to determine which ones might not have been remagnetized
>> by
>> > collectors. Then we can try to do paleointensity studies on those
>> (meaning
>> > how strong the magnetic field was 4.5 billion years ago in the nascent
>> solar
>> > system). We can also characterize the magnetic properties of any
>> sample,
>> > including ones that have been remagnetized. Most of these measurements
>> can
>> > be done quickly and easily without any chemical or physical destruction
>> of
>> > the material. We could do a quick screening and decide which magnetic
>> > measurements made sense for each sample. They could then decide which
>> ones
>> > to leave with us for more analysis and which ones they wanted to take
>> back
>> > immediately.
>> >
>> > In addition, there are a number of non-destructive analyses which could
>> be
>> > done: including X-ray computed tomography (to see through what is
>> > inside
>> as
>> > done for human bodies). We (Denton Ebel and Qing-Zhu Yin) have already
>> done
>> > work on two specimens (SM3 and SM9) and submitted a conference report
>> > on
>> May
>> > 29th. A few more are currently planned. We will need to do more of
>> these
>> > analyses. CT scan images and movies shall be shared with the owner of
>> the
>> > samples. Those of you who want to see examples of those CT movies,
>> could
>> > come to my office and labs at UC Davis.
>> >
>> > We also urgently need to do more of gamma ray counting of more
>> specimens.
>> > This will help us to determine the pre-atmospheric entry meteoroid size
>> > before break up, among other information we could learn. These will
>> require
>> > samples to travel overseas in deep underground facilities (either in
>> North
>> > Japan or Italian Alps). The equivalent facilities in US was shut down
>> many
>> > years ago due to funding situation unfortunately. The test time is
>> typically
>> > 1 month. The specimens will be shipped back and forth with FedEx or any
>> > other insured carrier.
>> >
>> > If people are interested in having these test done (no harm is done to
>> the
>> > specimens) but help science in big way, please have them contact me.
>> > See
>> my
>> > contact information below.
>> >
>> > All the information we have so far indicate the organic content of SM
>> > meteorite is very very low. The implication is that this would require
>> LARGE
>> > amount of material made available to scientists so that we can extract
>> those
>> > minute quantities of amino acids and other organics and presolar
>> stardust
>> > grains for mass spectrometric analyses (these are the two primary
>> potentials
>> > that the SM meteorites could offer. We need public to come forward,
>> your
>> > support is deeply appreciated, to realize its full potential.
>> >
>> > Respectively,
>> >
>> > Qing-zhu Yin
>> >
>> >
>> > ________________________________________________
>> > Qing-Zhu Yin, PhD
>> > Chancellor's Fellow 2011-2016
>> > Associate Professor
>> > Department of Geology
>> > Earth and Physical Sciences (EPS) Building
>> > University of California, Davis
>> > One Shields Avenue
>> > Davis, CA 95616
>> >
>> > Tel: 1-530-752-0934 (Office: EPS 3129)
>> > 1-530-220-4076 (Cell Phone)
>> > 1-530-752-0637 (Yin Lab-ICP^2-EPS 3230)
>> > Fax: 1-530-752-0951 (Department)
>> > E-mail: qyin at ucdavis.edu
>> > http://www.geology.ucdavis.edu/faculty/yin.html
>> > ________________________________________________
>> > Please check out our new book published by Cambridge University Press
>> on
>> > April 12th, 2012
>> > www.cambridge.org/9781107600768 (paperback edition)
>> > www.cambridge.org/9780521760256 (hardback edition)
>> >
>> >
>> >
>>
>
> Qing-zhu Yin, PhD
> Associate Professor
> Department of Geology
> University of California, Davis
> One Shields Avenue
> Davis, CA 95616
>
> Tel: 1-530-752-0934 (Office)
> Fax: 1-530-752-0951 (Department)
> E-mail: qyin at ucdavis.edu
>
> Note: Please update your address book to use <qyin at ucdavis.edu>.
> The <yin at geology.ucdavis.edu> address will be decommissioned as
> of July 1, 2009 due to California budget crisis
>
> http:/www.geology.ucdavis.edu/faculty/yin.html
>


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Received on Mon 04 Jun 2012 09:06:19 PM PDT